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- W3193673508 abstract "We present a theoretical investigation of the effects of correlations on the electronic structure of the Mott insulator ${text{Sr}}_{2}{text{IrO}}_{4}$ upon electron doping. A rapid collapse of the Mott gap upon doping is found, and the electronic structure displays a strong momentum-space differentiation at low doping level: The Fermi surface consists of pockets centered around $(ensuremath{pi}/2,ensuremath{pi}/2)$, while a pseudogap opens near $(ensuremath{pi},0)$. Its physical origin is shown to be related to short-range spin correlations. The pseudogap closes upon increasing doping, but a differentiated regime characterized by a modulation of the spectral intensity along the Fermi surface persists to higher doping levels. These results, obtained within the cellular dynamical mean-field-theory framework, are discussed in comparison to recent photoemission experiments and an overall good agreement is found." @default.
- W3193673508 created "2021-08-30" @default.
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- W3193673508 date "2019-01-01" @default.
- W3193673508 modified "2023-10-18" @default.
- W3193673508 title "Pseudogap and electronic structure of electron-doped Sr 2 IrO 4" @default.
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